Noise on Fosi audio k5 pro mini with Truthear Zero Red

[Jimbob54]

I saw about moondrop dawn pro too, serms to be good. I don’t know which one to buy

We cant make the decision for you. Personally I would just use the Apple dongle on anything that it can power. Which is pretty much all IEMs.

There is no magic to be had from a more expensive dac/amp unless the Apple cant provide enough power. Which it most definitely can for the Truthear Zero.

 

[im_gumby]

I don’t have the apple dongle, only the charger

OK, sorry to be jump in late...

So if you're hearing a hiss, it could be your USB-C cable.
If you're connecting to an older model iPhone you need a USB-C to Lighting cable. (Apple makes them)
That could help.

Not a lot of good DACs for under $50.00 but if you were to look at around the $100 price range there are a couple like the Onix Alpha, which may have issues if you're not using an iPhone. Some phones are finicky.

 

[dtaylo1066]

Get another DAC. Plenty of quality out there for not much money, as in less than $100. Check the review data base here. Often some good deals on Drop.

I have the Red Zeros via a USB out from a very old desktop computer into an old iFi amp/DAC. Dead silent. Sounds stupendous. Red Zero and your ear require the right sizing of the silicone tips. I think the bigger tip the better, though that should not be a hiss thing, just an overall sound factor thing.

Hiss in 2025 = no good = unnecessary.